A 1.45 mol sample of an ideal gas (γ = 1.40) is carried through the Carnot cycle described in the figure below. At point A, the pressure is 28.5 atm and the temperature is 600 K. At point C, the pressure is 1.00 atm and the temperature is 400 K.
How do I get the pressure and volume for point B? In the graph point B lies further down the same Temperature line so I'm assuming temperatures are the same. I also have solved for the volume of point A. I just can't figure out the relationship between the two.